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61 Current news about the topic catalysts

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New catalyst produces cheap hydrogen

30-Nov-2018

The potential for the chemical storage of renewable energy in the form of hydrogen is investigated around the world."The Australian Government is interested in developing a hydrogen export industry to export our abundant renewable energy," said Professor O'Mullane from QUT's Science and ...

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How to melt gold at room temperature

21-Nov-2018

When the tension rises, unexpected things can happen - not least when it comes to gold atoms. Researchers from, among others, Chalmers University of Technology, Sweden, have now managed, for the first time, to make the surface of a gold object melt at room temperature. Ludvig de Knoop, from ...

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Metallic nanoparticles light up another path towards eco-friendly catalysts

Platinum clusters consisting 19 atoms perform 50 times higher catalytic activity

19-Nov-2018

Scientists at Tokyo Institute of Technology produced subnano-sized metallic particles that are very effective as catalysts for the oxidation of hydrocarbons. These catalysts can be as much as 50 times more effective than well-known Au-Pd bimetallic nanocatalysts.The oxidation of aromatic ...

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Disproving the universal nature of the mercury test

Mercury test of catalysts that has been considered universal for 100 years seems to be ambiguous

26-Oct-2018

The mercury test of catalysts that has been used and considered universal for 100 years, turned out to be ambiguous. This conclusion was made by a group of scientists including a RUDN chemist. The group confirmed that the test required additional control experiments to verify its results. The ...

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Noble metal-free catalyst system as active as platinum

Affordable high-performance catalysts have come within reach

25-Oct-2018

The industry has been traditionally deploying platinum alloys as catalysts for oxygen reduction, which is for example essential in fuel cells or metal-air batteries. Expensive and rare, that metal imposes strict restrictions on manufacture. Researchers at Ruhr-Universität Bochum (RUB) and ...

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A new nanocatalyst for obtaining hydrogen

19-Oct-2018

A chemist from RUDN was the first to use catalysts with ruthenium nanoparticles to obtain hydrogen under the influence of visible light and UV radiation. In the future, such catalysts may be used for large-scale production of hydrogen fuel under the influence of sunlight.Photochemical reactions ...

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Determining catalytic active sites using carbon nanotubes

A novel method to determine the cause of catalytic activity

12-Oct-2018

Catalytic research led by University of Oklahoma researcher Steven Crossley has developed a new and more definitive way to determine the active site in a complex catalyst. Catalysts consisting of metal particles supported on reducible oxides show promising performance for a variety of current and ...

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A highly active organic photocatalyst

05-Oct-2018

Scientists from the University of Liverpool, University College London and East China University of Science and Technology have synthesized a new organic material that can convert water into hydrogen fuel using sunlight. Photocatalytic solar hydrogen production--or water splitting--offers an ...

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The gods of small things

Heterometallic copper-aluminum super atom discovered

27-Sep-2018

On the outside, the cluster made of 55 copper and aluminum atoms looks like a crystal, but chemically it has the properties of an atom. The heterometallic superatom which chemists of the Technical University of Munich (TUM) have created provides the prerequisites for developing new, more ...

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Simpler and safer method for handling a useful but foul-smelling gas in chemical synthesis

25-Sep-2018

The chemical element sulfur is an important constituent in many pharmaceuticals and, consequently, it is desirable to be able to introduce sulfur-containing fragments efficiently in a broad range of chemical compounds. The Skrydstrup team provides an effective and safe way for introducing a ...

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